{"product_id":"manley-performance-04-07-impreza-wrx-sti-valve-spring-and-retainer-kit-titanium","title":"Manley Performance [04-07 Impreza] WRX\/STi Valve Spring and Retainer Kit - Titanium","description":"Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and racing applications, these chrome-silicon alloy springs provide exceptional fatigue resistance and high-tensile strength, ensuring consistent valve control at extreme RPMs. Save time and money with these kits, featuring premium springs, retainers, designed to handle aggressive aftermarket camshafts.\nMax Lift: 0.525\" - Spring: 22180-16 - Titanium Retainer: 23180-16\nManley Sport Compatct Valve Spring and Retainer Kit\n\u003cul\u003e\n  \u003cli\u003eIncludes matched Valve Springs, Retainers, and Locks (if part number ends in \"K\"). Spring Locators included in some applications.\u003c\/li\u003e\n  \u003cli\u003eIncludes 7  Machined Valve Locks manufactured from the premium quality heat treated steel\u003c\/li\u003e\n  \u003cli\u003eHeat treated aerospace grade titanium retainers CNC machined to exacting tolerances\u003c\/li\u003e\n  \u003cli\u003eDesigned to handle aftermarket camshafts and up to 10,000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Manley Performance Valve Spring and Retainer Kit is designed for high-performance and racing applications requiring dependable valve control at elevated engine speeds. Part number MAN26180 includes matched valve springs and CNC-machined titanium retainers for Subaru Impreza WRX and STI applications. The kit is engineered to support aftermarket camshafts with a maximum valve lift of 0.525 inch.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes 16 matched valve springs and titanium retainers\u003c\/li\u003e\n  \u003cli\u003eDesigned for consistent valve control in applications reaching up to 10,000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eManley Performance uses chrome-silicon alloy valve springs to provide high tensile strength, fatigue resistance, and stable performance under demanding conditions. The included springs are part number 22180-16, while the titanium retainers are part number 23180-16. Each retainer is heat treated and CNC machined to precise tolerances, helping maintain proper valvetrain stability during high-RPM operation and aggressive camshaft use.\u003c\/p\u003e\n\u003cp\u003eThis Sport Compact Valve Spring and Retainer Kit is intended for compatible 2004-2007 Subaru Impreza WRX and STI engines. The kit is supplied without valve locks, making it suitable for builds where the installer is selecting or reusing compatible locks separately. Confirm spring pressure, installed height, retainer compatibility, and complete valvetrain specifications before installation. Professional installation and application-specific setup are recommended for performance engine builds.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eApplication: Fits compatible 2004-2007 Subaru Impreza WRX and STI applications\u003c\/li\u003e\n\u003cli\u003eMaximum Valve Lift: Supports valve lift up to 0.525 inch\u003c\/li\u003e\n\u003cli\u003eValve Springs: Chrome-silicon alloy springs designed for high tensile strength and fatigue resistance\u003c\/li\u003e\n\u003cli\u003eRetainers: Heat-treated aerospace-grade titanium retainers CNC machined to precise tolerances\u003c\/li\u003e\n\u003cli\u003eRPM Capability: Designed to handle aftermarket camshafts and engine speeds up to 10,000 RPM\u003c\/li\u003e\n\u003cli\u003eKit Contents: Includes 16 valve springs and 16 titanium retainers; valve locks are not included\u003c\/li\u003e\n\u003cli\u003ePart Number: Manley Performance MAN26180, with spring part number 22180-16 and retainer part number 23180-16\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\nAir Freight Prohibited: false\u003cbr\u003e\nNot Carb Approved: false\u003cbr\u003e\nLtl Freight Required: false\u003cbr\u003e\nProp 65: Y\u003cbr\u003e\nPart Type: automotive\u003cbr\u003e\nEpa: N\/A\u003cbr\u003e\nCarb Acknowledgement Required: false\u003cbr\u003e\nRegular Stock: t\u003cbr\u003e\nUnits Per Sku: 1\u003cbr\u003e\nFitment:\u003cbr\u003e\nSaab 9-2X Aero 2005\u003cbr\u003e\nSaab 9-2X Aero 2006\u003cbr\u003e\nSubaru Impreza WRX 2002\u003cbr\u003e\nSubaru Impreza WRX 2003\u003cbr\u003e\nSubaru Impreza WRX 2004\u003cbr\u003e\nSubaru Impreza WRX 2005\u003cbr\u003e\nSubaru Impreza WRX 2006\u003cbr\u003e\nSubaru Impreza WRX 2007\u003cbr\u003e\nSubaru Impreza WRX 2008\u003cbr\u003e\nSubaru Impreza WRX 2009\u003cbr\u003e\nSubaru Impreza WRX 2010\u003cbr\u003e\nSubaru Impreza WRX 2011\u003cbr\u003e\nSubaru Impreza WRX 2012\u003cbr\u003e\nSubaru Impreza WRX Limited 2006\u003cbr\u003e\nSubaru Impreza WRX Limited 2007\u003cbr\u003e\nSubaru Impreza WRX Limited 2010\u003cbr\u003e\nSubaru Impreza WRX Limited 2011\u003cbr\u003e\nSubaru Impreza WRX Limited 2012\u003cbr\u003e\nSubaru Impreza WRX Premium 2009\u003cbr\u003e\nSubaru Impreza WRX Premium 2010\u003cbr\u003e\nSubaru Impreza WRX Premium 2011\u003cbr\u003e\nSubaru Impreza WRX Premium 2012\u003cbr\u003e\nSubaru Impreza WRX STI 2004\u003cbr\u003e\nSubaru Impreza WRX STI 2005\u003cbr\u003e\nSubaru Impreza WRX STI 2006\u003cbr\u003e\nSubaru Impreza WRX STI 2007\u003cbr\u003e\nSubaru Impreza WRX STI 2008\u003cbr\u003e\nSubaru Impreza WRX STI 2009\u003cbr\u003e\nSubaru Impreza WRX STI 2010\u003cbr\u003e\nSubaru Impreza WRX STI 2011\u003cbr\u003e\nSubaru Impreza WRX STI 2012\u003cbr\u003e\nSubaru Impreza WRX STI Limited 2007\u003cbr\u003e\nSubaru Impreza WRX STI Limited 2011\u003cbr\u003e\nSubaru Impreza WRX STI Limited 2012\u003cbr\u003e\nSubaru Impreza WRX STI Special Edition 2010\u003cbr\u003e\nSubaru Impreza WRX TR 2006\u003cbr\u003e\nSubaru Impreza WRX TR 2007","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":47258126483558,"sku":"man26180","price":345.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/8703\/7237\/files\/group-e45d01a3-7621-4dfe-874e-76d6ca2e21aa-800.jpg?v=1790174670","url":"https:\/\/jdmuscleusa.com\/products\/manley-performance-04-07-impreza-wrx-sti-valve-spring-and-retainer-kit-titanium","provider":"JDMuscle","version":"1.0","type":"link"}